diff --git a/LEGO1/mxdirectx/mxdirectxinfo.cpp b/LEGO1/mxdirectx/mxdirectxinfo.cpp
index 05846a39..ae4a9d65 100644
--- a/LEGO1/mxdirectx/mxdirectxinfo.cpp
+++ b/LEGO1/mxdirectx/mxdirectxinfo.cpp
@@ -269,7 +269,7 @@ void MxDeviceEnumerate::BuildErrorString(const char* p_format, ...)
 	char buf[512];
 
 	va_start(args, p_format);
-	vsprintf(buf, p_format, args);
+	int count = vsprintf(buf, p_format, args);
 	va_end(args);
 
 	OutputDebugString(buf);